Improvement in printing-telegraphs



2 Sheets--Sheet 2. A. WIRSCHING.

Printing-Telegraph.

N0. 166,9]1 Patented Aug. 1'7,1875.

UNTTED STATES PATENT OFFICE.

ALOIS WIRSCHING, OF- BROOKLYN, E. D., NEW YORK.

IMPROVEMENT IN PRlNTlNG-TELEGRAPHS.

Specification forming part of Letters Patent No. 166,911, dated August 17, 1875; application filed l April 29, 1875.

To all whomv it may concern:

Beit known that I, ALoIs WIRSCHING, of Brooklyn, E. D., inthe county of Kings and State of New York, have invented a certain new and Improved Printing Telegraph, of which the following is a specification:

This invention is illustrated in the accompanying drawing, in which- Figure l represents a plan or top view. Fig. 2 is a longitudinal vertical section. Fig. 3 is Aa side view. Fig. 4 is a transverse section in the plane a: w, Fig. 1.

Similar letters indicate corresponding parts.

This invention relates to printing-telegraph apparatus; and my invention consists in a novel combination of parts, which will be fully hereinafter described, and specifically pointed out in the claim, a preliminary description being, therefore, deemed unnecessary.

In the drawing, the letter A designates a metallic frame, which forms the bearings for the various working parts of my printing-telegraph. On the bed-plate of this frame rest the-line-magnet B and the printing-magnet O.

D is the armature of the line-magnet, which oscillates on an arbor, a, and the inner end of which forms a pallet, b, which acts on an escapement-wheel, c. This escapement-wheel is mounted loosely on the type-wheel shaft e, being in metallic contact with, and connected to, the same by a spiral spring, f, which is wound round said type-wheel shaft and connected to the same at one end, while its opposite end is connected to the escapementwheel. The type-wheel shaft is geared together with a clock-movement, or with any other source ofpower, so that when the armature of the line-magnet pulsates a regular step-bystep movement is imparted to the type-wheel shaft. If the escapement wheel is rigidly mounted on the type-wheel shaft, the rapidity with which this step-by-step movement can be effected is limited, since for each stroke of the armature D and its pallet b the type-wheel shaftis arrested positively 5 but by my arrangement the rapidity of the step-by-step movement of the type-wheel shaft can be materially increased, since the sprin g j', which connects the escapement-wheel with the type-wheel shaft, allows the latter to move against the action of said spring after the escapement-wheel has been arrested by the pallet b, and when the escapement-wheel is released it moves by the action of said spring, and thus the motion of the escapement-wheel is rendered, to a certain extent, independentof the motion of the typel wheel shaft, and the pulsation ofthe armature a can be very rapid without disturbing the correct motion of the type-Wheel shaft. Fromvthe side of the escapement-wheel projects a metallic l pin, g, between two pins, t i, vwhich radiate from a metallic collar, j, mounted'on the typey wheel shaft, but insulated from the same. The

pin h is of platina or other good conductor of electricity, and the pin iis of a non-conductor,

such as gutta-percha or india-rubber. From y the collar j extends a metal wire, k, to a metal ring, l, which is mounted on the type-wheel shaft, but insulated from the same. On this ring'bears a spring, m, which connects by a wire, 10, with one end of the helix of the printing-magnet G. The other end of this helix connects by a wire, 11, with one pole of a local battery, EO, and the opposite pole of thisbattery connects by a Wire, l2, with the metallic frame A. Whenever the pulsations of the armature D of the line-magnet are stopped, and consequently the motion of the escapement-wheel is arrested, the type-wheel shaft is turned against the action of the spring f, until the metallic pin h, in the insulated collar j, strikes the pin g of the type-wheel, and then the circuit through the printing-magnet is closed, the armature E of this magnet is attracted, and the paper is pressed up against the type-wheel. The armature E is mounted on a roclrshaft, a, on which is also secured an arm, o, to the end of which is attached the paper-supporting roller F. When a letter has been printed and the pulsations of the armature of the line-magnet are again commenced the escapement-wheel, impelled by the accumulated force of its spring f, throws the pin g out of contact with the metallic pin h, and the circuit through the printing-magnet is opened. The paper-supporting roller drops back, and the step-by-step motion of the typebrations continue.

theline-magnetis'attracted then the circuit movement,-bein g insulated from the same, and' held' in position by a friction-spring, 19,y SoA that when its arbor turns the unison-lever will be gradually carried up to the position shown in Fig. 2. As the type-wheel shaft revolves, a pin, g, projecting from the same comes in contact withthe'h'ookshaped end ofl the unison-lever, and the type-wheel shaft is arrested, the escapement-wheel c being thrown in such a position that its pin g comes in contact with the insulated pin t' of the collar j. From the hub of the unison-lever extends a wire, 13, to a springor bar, r, which rests upon the armature D of the line-magnet, and which, when this armature is up, comes in metallic contact y with a screw,.s, which is insulated from the with the end of the helix of the printing-magnet. When the pin g comes in metallic contact with the unison-lever'therefor the circuit through the printing-magnet'is'closed by wires 12,v frame A, piny g, unison-lever G, wire 13, spring r, screw' s, wire 14.and through wire 11' back to the battery. This4 circuit is only closed when the vibration of thev armature D stops, andl it cannot beclosed While' those vi- When the armature. of

through the printing-magnet is open, even when `the piny g is in contact withthe unison'- 'y lever; When said circuit is closed the arma; g

vturefofthe printing-magnet is attracted, and n asthe same descends a pin, t, projectingl from yof. thennison-lever Gr, and throws the same 'out of contact withk the pin g.' By this action the circuit through the printing-magnet is vopen before the same has time to perform any printing, and at the same time the type.- w-heels of the Various instruments are brought in unison, the unison-levers. of all said instruments causing the appropriate typewheels to turn to that position at certain intervals.

What I claim as new, and desire to secure Y .by Letters Patent, isfralne A,.and which connects by a Wire, 14,

In combination with the eseapement-wheel,

mounted loosely on the type-wheelshaft of a printing-telegraph, and connected to the same by a spiral springand with the' armature of "the line-magnet, the pins g h t', insulated metallic collar j, spring m, and printing-magnet O, substantially as and for the purpose set y v In testimonyl that I claim Athe foregoing, I `*have hereunto set my hand and seal this 21st day ofApril, 187 5.'

W. HA'UFF, E.; F.' KASTENHUBER. 

